Film spool carriage



March 12, 1940. H. o. DROTNING 2,193,022

FILM SPOOL CARRIAGE Filed Sept. 13, 1938 L fienr 0.0/020/27 A/5 INVENTOR y @6277 .ao/a/a z u BY (f TORNEYS Patented Mar. 12, 194i) I UNITED STATES, PATENT OFFICE FILM SPOOL CARRIAGE Henry, 0. Drotning, Rochester, N. 1 assignor to Eastman Kodak Company, Rochester, N. Y., a

corporation of New Jersey Application September 13, 1938, Serial No. 229,721

5 Claims. (Cl. 242-71) Thepresent invention relates to roll film camwith inwardly projecting trunnions 22 which exeras, and more particularly to a film spool cartend into registering apertures, not shown, Iiage for ch m r formed in the opposite ends of the fllm spool 2I One object of the invention is the provision of to rotatably support the latter. These trunnions a spool carriage which simultaneously releases rigidly support the film spool and prevent distor- 5 both ends of a film spool to facilitate the ready ti n th f durin th film win p a n. removal or replacement thereof The other side .25 of the carriage I5 is closed Another object of theinvention is the provision by overlapping the free end 6 of t al p, of a spool carriage which affords adequate supas clearly shown in Fig. 2. These overlapping lo port for both ends of the film spool. portions are then bent upwardly and outwardly 10 A still further object of the invention is the to form a T-shaped connection 21, the ends of provision of a spool carriage which is provided which are bent inwardlylto provide finger-gripwith spool releasing means accessible only from ping portions 28. .As the carriage I5 is made of the inside of the camera, thus preventing'accies ent e al e Po ti s 23 are normally 1:? dental and unintentional release of the film spool. maintained in the position shown in Fig. 2 so that To these and otherends, the invention resides the trunnion 22 will engage and adequately supin certain improvements and combinations of port the film winding operation. When, however, parts, all as will be hereinafter more fully dethe spool is to be removed, or anew spool inserted, scribed, the novel features being pointed out in the portions 28 are gripped and pressed together the claims at the end of the specification. to spring or flex the ends l8 outwardly and away 20 In the drawing: i from each other, as shown in Fig. 3, to permit I Fig. l is a front elevation view of a roll film the ready removal or replacement of the film camera with a portion thereof cut away to show spool 2|. This pressing of theportions 28 serves one of the spool chambers in which is positioned to bend or flex the spool carriage about the point a spool carriage constructed in accordance with 3B which form, in effect, spring hinges or pivots 25 the preferred embodiment of the invention, show-- for the ends I8. For this reason the ends I8 and ing the spool carriage in the spool engaging and their film supporting .trunnions 22 may be broadsupporting position; 1y considered as pivotally or hingedly mount- Fig. 2 is a perspective view of the preferred ed on thespool carriage. 30 form of spool carriage, and It is apparent from the above description that 30 Fig. 3 isa front elevation view of a portion of both ends I8 are simultaneously moved to disthe camera illustrated in Fig. 1, showing the spool engage the film spool. Furthermore, as the fincarriage in the flexed or spool releasing position. ger-gripping portions 28 are accessible only from Similar reference numerals throughout the the inside of the camera and only after the back 5 various views indicate the same parts. thereof has been removed, it is apparent that ac- The drawing shows a roll film camera II of cidental or inadvertent disengaging of the film i any suitable and well-known construction, the spool is prevented, the disadvantages of which ends I3 of which are formed with spool chambers will be readily apparent to those in the art. M, only one of which is shown. As the struc- While the present embodiment shows a spool car- 40 tural details of the camera do not constitute a rias adapt n t rotatably s p t a supp y 40 part of the present invention, a detailed descrip- 1 it is a pa t at su a a w tion thereof is not deemed necessary to an under- Slight modification, may Q be u 110 pp a standing of the present invention. take-up spool. v

A film carriage, generally indicated by the While one embodiment of the 1nvent1on has numeral I5, is positioned within one of the spool bee losed, 1t 18 apparent that the inventive 45 chambers I 4. This carriage is formed from a dea y be carried out in a number of y single piece of resilient material, preferably The present application is therefore not to be spring metal, to provide a, hollow, rectangular limited to the precise details described, but is member of the shape best shown in Fig. 2. One intended to cover all variations and modifica- 59 side I6 of the spool carriage is rigidly secured to 13 8 fa l g Within h Spirit Of e inve t on 01 the camera body by means of screws IT, or other the scope of the appended claims. suitable. fastening means. The opposite ends I8 I claim: of the carriage are formed to provide enlarged 1; In a roll film camera, the combination with portions or disks I9 which engage the end flanges a spool chamber, of a spool carriage mounted in 5 20 of the film spool 2|. These disks I9 are formed said chamber, a pair of flexible members formed from the material of said carriage for yieldably engaging opposite ends of a film spool to rotatably support the latter, and a pair of presser members formed from the free'ends of said material and arranged to be moved substantially in a plane for simultaneously moving both of said flexible members to permit removal of said spool.

2. In a. roll filmv camera, the combination with a spool chamber, of a spool carriage mounted in said chamber, a pair of movably mounted members formed on said carriage for engaging opposite ends of a film spool to rotatably support the latter, the ends of said members being arranged in overlapping relation to provide a T- shaped portion and means formed integral with said portion for moving both of said members to permit removal or insertion of said spool.

3. In a roll film camera, the combination with a spool chamber, of a spool carriage mounted said chamber and formed from a single strip of sheet material to provide a pair of resiliently mounted disks, trunnions on said disks .for engaging opposite ends of a film spool to rotatably support the latter, anda pair of overlapping members formed onthe free ends of said materialand arranged to be pressed toward each other to separate said disks to permit removal or insertion of said spool.

4-. In a roll film camera, the combination with a spool chamber, 05 a spool carriage positioned in said chamber and formed from a single strip of resilient materialto provide a pair of members arranged to engage and rotatably support opposite encls of a film spool, the ends of said strip being arranged in overlapping relation to provide finger gripping portions which when pressed tov gether will separate said members to permit insertion or removal of said spool.

5. In a roll film camera, the combination with a camera body formed with a spool chamber, of a hollow rectangular memberpositioned within said chamber and formed from a single strip of reslient material to provide a spool carriage hava ing sides and ends, one of said sides being rigidly HENRY O. DROTNING. 

